CN111193223A - High-voltage cable laying system and laying method - Google Patents
High-voltage cable laying system and laying method Download PDFInfo
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- CN111193223A CN111193223A CN202010130036.7A CN202010130036A CN111193223A CN 111193223 A CN111193223 A CN 111193223A CN 202010130036 A CN202010130036 A CN 202010130036A CN 111193223 A CN111193223 A CN 111193223A
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- 238000010276 construction Methods 0.000 description 4
- 230000005484 gravity Effects 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
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- 238000005452 bending Methods 0.000 description 1
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
- H02G1/06—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H51/00—Forwarding filamentary material
- B65H51/02—Rotary devices, e.g. with helical forwarding surfaces
- B65H51/04—Rollers, pulleys, capstans, or intermeshing rotary elements
- B65H51/06—Rollers, pulleys, capstans, or intermeshing rotary elements arranged to operate singly
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H51/00—Forwarding filamentary material
- B65H51/02—Rotary devices, e.g. with helical forwarding surfaces
- B65H51/04—Rollers, pulleys, capstans, or intermeshing rotary elements
- B65H51/08—Rollers, pulleys, capstans, or intermeshing rotary elements arranged to operate in groups or in co-operation with other elements
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Abstract
本发明公开了一种高压电缆敷设系统及敷设方法，涉及高压电缆敷设技术领域，其中高压电缆敷设系统包括：高压电缆牵引机、沿敷设线路设置的若干个高压电缆输送机和高压电缆滚筒、为高压电缆牵引机和高压电缆输送机供电的发电机以及控制装置；高压电缆输送机的电机安装有与控制装置电连接的PWM调速器。
The invention discloses a high-voltage cable laying system and a laying method, and relates to the technical field of high-voltage cable laying. The generator and control device powered by the high-voltage cable tractor and the high-voltage cable conveyor; the motor of the high-voltage cable conveyor is equipped with a PWM speed governor electrically connected with the control device.
Description
Technical Field
The invention relates to the technical field of high-voltage cable laying, in particular to a high-voltage cable laying system and a high-voltage cable laying method.
Background
At present, a tractor is generally adopted to fix one end of a high-voltage cable during laying construction of the high-voltage cable for power transmission, the high-voltage cable for power transmission is dragged and laid through mechanical tension, and the middle part of the high-voltage cable is supported by rollers. When the tractor lays a high-voltage cable, the internal structure of the high-voltage cable is easy to damage, and particularly when the long-distance high-voltage cable is laid, the high-voltage cable with the copper conductor of the inner core of the cable and the external insulating layer which have larger stress difference is easy to break. Some laying methods reduce the difference of the tension of the outer sleeve and the copper core of the high-voltage cable by installing the high-voltage cable conveyor in the middle of the high-voltage cable, so that a certain effect is achieved, but a generator is generally adopted to supply power to the high-voltage cable conveyor when the long-distance high-voltage cable is laid, the rotating speed of the high-voltage cable conveyor at each different position cannot be unified due to the fact that the distance is long, the tension of the high-voltage cable between the two high-voltage cable conveyors at different positions is different, and the high-voltage cable between the two high-voltage cable conveyors is possibly extruded due to the speed difference, so that the high-voltage cable is easily damaged in the laying process.
Disclosure of Invention
The invention aims to provide a high-voltage cable laying system and a laying method, which achieve the effect of enabling all sections of a high-voltage cable to be stressed uniformly in the high-voltage cable laying process by using a PWM speed regulator and installing a servo motor serving as auxiliary power on a high-voltage cable roller.
To solve the above problems, an aspect of the present invention provides a high voltage cable laying system including: the system comprises a high-voltage cable tractor, a plurality of high-voltage cable conveyors and high-voltage cable drums arranged along a laying line, a generator for supplying power to the high-voltage cable tractor and the high-voltage cable conveyors, and a control device; the motor of the high-voltage cable conveyor is provided with a PWM speed regulator which is electrically connected with the control device. The pulse width modulation is called as follows: pulse Width Modulator, referred to as PWM, is often used in dc load circuit, lamp dimming or dc motor speed regulation due to its special performance, and HW-1020 type speed regulator is a motor speed regulator and PWM speed regulator manufactured by using Pulse Width Modulation (PWM) principle. The PWM speed regulator has the advantage of low price, the high-voltage cable conveyer is provided with the PWM speed regulator and is connected with the control device, the rotating speed of the motors of the high-voltage cable conveyer can be controlled through the control device, and the rotating speed of the motors of each high-voltage cable conveyer is uniform, so that the conveying speed of each section of high-voltage cable between each high-voltage cable conveyer is the same, the overlarge and uneven internal stress of the high-voltage cable caused by different conveying speeds of each section of the high-voltage cable is reduced, and the laying quality of the high-voltage cable is improved. The control device may be a Programmable Logic Controller (PLC), which is a digital operation electronic system specially designed for application in industrial environment. It uses a programmable memory, in which the instructions for implementing logical operation, sequence control, timing, counting and arithmetic operation are stored, and utilizes digital or analog input and output to control various mechanical equipments or production processes. The control device of the invention can achieve the unification of the running speeds of all the conveying devices of the high-voltage cables by controlling all the PWM speed regulators, and prevent the overlarge stress difference of the high-voltage cables among all the devices.
A first servo motor is arranged on the high-voltage cable roller and used as supplementary power; the first servo motor is electrically connected with the control device through the second PWM speed regulator. The existing high-voltage cable roller only plays a role in supporting the high-voltage cable along the laying of the high-voltage cable. The first servo motor is arranged on the high-voltage cable roller and used as auxiliary power when the high-voltage cable is laid, so that the pulling force applied to the high-voltage cable by the high-voltage cable tractor can be reduced, the pulling force provided by the high-voltage cable laying machine at the middle section along the laying line of the high-voltage cable can be reduced, the high-voltage cables in all sections can simultaneously bear the acting force in the laying direction of the high-voltage cable when the high-voltage cable is laid, the pulling force applied to the high-voltage cable in a certain section is smaller independently, the pulling force applied to the high-voltage cable is more uniform, the high-voltage cable can be kept in a good state when being laid, and the high-voltage. The first servo motor of the high-voltage cable drum is electrically connected with the control device through the second PWM speed regulator, the rotating speeds of all the high-voltage cable drums and the high-voltage cable laying machine can be synchronized through the control device, and the problems that stress difference is large and the high-voltage cables slide down or are stressed unevenly due to the fact that the high-voltage cables in all sections are different in rotating speed in the laying process are solved. If the high-voltage cable drum or the high-voltage cable laying machine at the front end has a low rotating speed along the high-voltage cable laying direction, and the high-voltage cable drum or the high-voltage cable laying machine immediately behind the high-voltage cable drum or the high-voltage cable laying machine has a high rotating speed, a high extrusion force may be generated inside the high-voltage cable at the middle end, and when the extrusion force is too high, the high-voltage cable may be bent, derailed and damaged. In another case, when the rotating speed of the front end high-voltage cable drum or the high-voltage cable laying machine is high, and the rotating speed of the high-voltage cable drum or the high-voltage cable laying machine immediately following the front end high-voltage cable drum or the high-voltage cable laying machine is low, a high tensile stress is generated in the middle end high-voltage cable, and when the tensile stress is too high, the high-voltage cable may be broken or the insulating layer may be broken. After the first servo motors of the high-voltage cable drums are electrically connected with the control device through the second PWM speed regulator, the control device controls the rotating speed of the first servo motors of the high-voltage cable drums, so that the damage can be greatly reduced, the high-voltage cable laying is safer, and the high-voltage cable laying quality is improved.
The clamping device comprises a clamping roller assembly, a clamping spring and a clamping spring, wherein the clamping roller assembly comprises two clamping rollers with parallel shafts, and the clamping device enables the two clamping rollers to have opposite movement trends; one of the clamping rollers is provided with a second servo motor, and the second servo motor is electrically connected with the control device through a third PWM speed regulator. During the laying process, the high-voltage cable often needs to be laid on an uphill or downhill route, and at the moment, the high-voltage cable is easy to slip on the roller due to large weight, and possibly slips from the roller to cause damage to the high-voltage cable when the high-voltage cable slips seriously. The clamping roller assembly can enable the high-voltage cable to be clamped by the two clamping rollers to prevent the high-voltage cable from sliding off, and the second servo motor is arranged on one clamping roller to be used as auxiliary power to reduce the influence of gravity on the movement of the high-voltage cable along the laying direction when the high-voltage cable goes up a slope or down the slope. The second servo motor is electrically connected with the control device through the third PWM speed regulator, so that the rotating speed of the clamping roller can be controlled and adjusted more conveniently. When the high-voltage cable is laid on an uphill slope, the higher clamping roller can increase the pulling force of the second servo motor on the high-voltage cable by increasing the rotating speed of the second servo motor, and the component force of gravity along the laying direction of the high-voltage cable is offset by the increased partial pulling force. And in the downhill section, the higher clamping roller can improve the tension of the second servo motor on the high-voltage cable by reducing the rotating speed of the second servo motor, and the component force of gravity along the laying direction of the high-voltage cable is offset by the improved partial tension. Wherein the clamping spring provides the force required by the movement tendency of the two clamping rollers moving towards each other, and the position of the clamping spring can be arranged between the two clamping rollers; or the clamping spring can be arranged between the bracket and the clamping roller after the bracket is arranged, and the clamping spring provides pulling force or repulsive force between the bracket and the clamping roller to ensure that the two clamping rollers have opposite movement tendency.
The device further comprises a corner device, wherein the corner device comprises a rotating shaft and two rotating arms arranged on the rotating shaft, annular supporting plates are arranged on the two rotating arms, a driving roller is arranged on the rotating shaft, and a guide pulley is arranged on the rotating arms; the rotating arm is provided with a plurality of mounting holes; and the driving part of the driving roller is a third servo motor, and the third servo motor is electrically connected with the control device through a fourth PWM speed regulator. Wherein can the installation bearing in the pivot, make the rotation of two swinging arms easier, different bending angle's in the time of can satisfying high tension cable laying requirement through the relative position of adjusting two swinging arms. The driving roller is arranged at the position of the rotating shaft and provides rotating power through the third servo motor, so that the high-voltage cable can be assisted by tangential force provided by the driving roller when the high-voltage cable is turned, and the high-voltage cable is more stable when laid out in a non-straight line. The guide pulleys of two swinging boom installations can play the guide effect of corner when high tension cable lays, and high tension cable passes through the guide pulley of installation on a swinging boom earlier when laying high tension cable, and the corner device is worn out through the guide idler on another swinging boom to rethread initiative gyro wheel at last. The installation hole is formed in the rotating arm, so that the corner device can be conveniently installed on a construction site, if the corner device can be directly installed on the wall or the well wall of a high-voltage cable laying route, the use of auxiliary devices such as a scaffold can be reduced. The third servo motor is electrically connected with the control device through the fourth PWM speed regulator, so that the effect of synchronizing the speed with other rotating mechanisms can be achieved, and the rotating speed of the third servo motor can be adjusted through the control device according to the actual condition during laying of the high-voltage cable, so that a better effect is achieved.
According to a further technical scheme, two fourth servo motors are respectively installed on the guide pulleys on the two rotating arms, and the two fourth servo motors are electrically connected with the control device through a two-way fifth PWM speed regulator. The fourth servo motor is arranged on the guide pulley and used as supplementary power for the high-voltage cable to pass through a corner, so that the traction force applied to the high-voltage cable by the traction machine can be properly reduced when the high-voltage cable is laid, and the damage of the high-voltage cable caused by overlarge traction force is effectively reduced. The fifth PWM speed regulator of the double-circuit can be simultaneously connected with the two motors and used for regulating the speed of the two motors.
The further technical scheme is that the power of any servo motor is 300-500W. The power of servo motor is 300 ~ 500W, and preferred is 400W, and high tension cable conveyer can reach the effect that reduces the volume through reducing its power after the high tension cable cylinder can provide certain supplementary power for high tension cable lays. When the power of the high-voltage cable conveyor is 300-500W, the high-voltage cable conveyor is small in size and can enter a position with a small space encountered during laying of the existing high-voltage cable, the high-voltage cable conveyor does not need to be disassembled and then conveyed into the position with the small space for re-installation and use, and the position with the small space is specifically a high-voltage cable well. Meanwhile, the volume of the corner device can be reduced, and the purpose of convenient installation is achieved.
Another aspect of the present invention provides a high-voltage cable laying method of the above-mentioned high-voltage cable laying system, including the steps of:
s1: selecting a high-voltage cable tractor, a high-voltage cable conveyor, a high-voltage cable roller and a generator according to the general engineering profile; and selecting the clamping roller assembly and the corner device according to the condition along the line.
S2: arranging a high-voltage cable tractor; arranging a high-voltage cable conveyor according to the condition along the line; arranging a high-voltage cable roller on a high-voltage cable laying path for a straight line section to suspend the high-voltage cable along the way; arranging a corner device at a corner, and adjusting the angle between two rotating arms of the corner device; and a clamping roller assembly is arranged on the upper slope section and the lower slope section of the high-voltage cable laying path.
S3: the generator and the control device are arranged in the middle section of a high-voltage cable laying line, the generator is connected with each device needing electricity, and the control device is connected with the high-voltage cable conveyor, the high-voltage cable roller, the clamping roller assembly and the corner device.
S4: and starting the equipment after checking the equipment until the high-voltage cable is laid.
The further technical scheme is that in the step S2, a high-voltage cable conveyor is arranged at an interval of 50-80 m.
The further technical scheme is that in the step S2, a high-voltage cable roller is arranged at an interval of 5-10 m.
The further technical scheme is that the power of the high-voltage cable conveyor is 300-500W.
A further technical scheme is that in step S3, the angle between the two rotating arms of the corner device is adjusted according to the angle of the corner, and the corner device is installed at a preset position through the installation hole; and installing another corner device to enable the positions of the driving rollers and the guide pulleys of the two corner devices to be close, and enabling the pre-laid high-voltage cable to pass through the guide rollers of the two corner devices, then pass through the driving rollers of the two corner devices and finally pass through the other pair of guide rollers.
The principle of the invention is explained as follows: the PWM speed regulating module is used for regulating the rotating speed of each power component in the laying system, so that the high-voltage cable is prevented from falling or being pulled and damaged due to uneven stress in laying. The clamping roller and the corner device are used for solving the problems that the high-voltage cable slides and the corner position is not easy to lay when the high-voltage cable is laid. The power and the volume of each high-voltage cable conveyor are reduced by reasonably arranging the high-voltage cable conveyors and arranging the power device on the high-voltage cable roller, so that the high-voltage cable conveyor can be suitable for laying high-voltage cables on more occasions.
The technical scheme of the invention has the following beneficial technical effects: the high-voltage cable laying process is more stable, and the high-voltage cable cannot fall off or be pulled to be damaged. The high-voltage cable at the corner can be laid smoothly and stably without damaging the high-voltage cable.
Drawings
FIG. 1 is an installation diagram of embodiment 1;
FIG. 2 is a schematic view of the construction of a clamping roller assembly according to embodiment 1;
fig. 3 is a schematic structural view of the corner device of embodiment 1;
fig. 4 is a schematic view showing the installation of the corner device according to embodiment 2.
Reference numerals: 1: a high voltage cable tractor; 2: a high voltage cable conveyor; 3: a high voltage cable drum; 4: a ground surface; 5: a high voltage cable well; 6: clamping the roller assembly; 7: a corner device; 8: a high voltage cable; 61: clamping the roller; 62: a clamping device; 63: a clamping spring; 64: a second servo motor; 71: a rotating shaft; 72: a rotating arm; 73: an annular support plate; 74: a driving roller; 75: a guide pulley; 76: mounting holes; 77: a third servo motor; 78: and a fourth servo motor.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings in conjunction with the following detailed description. It should be understood that the description is intended to be exemplary only, and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.
Example 1
As shown in fig. 1, a high voltage cabling system comprises: the system comprises a high-voltage cable tractor 1, a high-voltage cable conveyor 2 and a high-voltage cable drum 3 which are arranged along a laying line, a generator for supplying power to the high-voltage cable tractor 1 and the high-voltage cable conveyor 2 and a control device; the motor of the high-voltage cable conveyor 2 is provided with a PWM speed regulator which is electrically connected with the control device. A high-voltage cable conveyor 2 is arranged on a laying line of high-voltage cables at intervals of 50-80 m, and a high-voltage cable roller 3 is arranged at intervals of 5-10 m. Within this range, may be adjusted according to the particular construction environment. The power of the high voltage cable conveyor 2 is 400W.
A first servo motor is arranged on the high-voltage cable roller 3 and used as supplementary power; the first servo motor is electrically connected with the control device through the second PWM speed regulator.
As shown in fig. 2, the pinching roller assembly 6 includes two pinching rollers 61 having parallel axes, a pinching device 6262 for making the two pinching rollers 61 have opposite moving tendencies, a pinching spring 63 for providing the moving tendency; one of the clamping rollers 61 is provided with a second servomotor 64, and the second servomotor 64 is electrically connected to the control device via a third PWM governor.
As shown in fig. 3 and 4, the corner device 7 includes a rotating shaft 71 and two rotating arms 72 mounted on the rotating shaft 71, a ring-shaped support plate 73 is mounted on the two rotating arms 72, a driving roller 74 is mounted on the rotating shaft 71, and a guide pulley 75 is mounted on the rotating arm 72; the rotating arm 72 is provided with a plurality of mounting holes 76; the driving part of the driving roller 74 is a third servo motor 77, and the third servo motor 77 is electrically connected with the control device through a fourth PWM governor. Two fourth servo motors 78 are respectively installed on the guide pulleys 75 on the two rotating arms 72 of the corner device 7, and the two fourth servo motors 78 are electrically connected with the control device through a two-way fifth PWM speed regulator. The control device is a PLC, and the first PWM speed regulator, the second PWM speed regulator, the third PWM speed regulator and the fourth PWM speed regulator are controlled through a written speed control program, so that the speeds of all parts are kept uniform.
Referring to fig. 1, a method for laying a high-voltage cable in a high-voltage cable laying system according to the present invention is described below, including the following steps:
s1: selecting a high-voltage cable tractor 1, a high-voltage cable conveyor 2, a high-voltage cable drum 3 and a generator according to the general engineering profile; the clamping roller assembly 6 and the corner device 7 are selected according to the conditions along the line.
S2: arranging a high-voltage cable tractor 1; arranging a high-voltage cable conveyor 2 at intervals of 50-80 m according to the condition along the line; a high-voltage cable roller 3 is arranged on a high-voltage cable laying path at intervals of 5-10 m on a straight line section, so that a high-voltage cable 8 on the way can be suspended.
S3: as shown in fig. 4, two corner devices 7 are disposed at the corners, and the angle between the two rotating arms 72 of the corner devices 7 is adjusted; the corner device 7 is installed at a preset position through the installation hole 76; and a clamping roller assembly 6 is arranged on the upper slope section and the lower slope section of the high-voltage cable laying path.
S4: the generator and the control device are arranged in the middle section of a high-voltage cable laying line, the generator is connected with each device needing electricity, and the control device is connected with the high-voltage cable conveyor 2, the high-voltage cable roller 3, the clamping roller assembly 6 and the corner device 7.
S5: and starting the equipment after checking the equipment until the high-voltage cable is laid.
It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010130036.7A CN111193223B (en) | 2020-02-28 | A high voltage cable laying system and laying method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010130036.7A CN111193223B (en) | 2020-02-28 | A high voltage cable laying system and laying method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111193223A true CN111193223A (en) | 2020-05-22 |
| CN111193223B CN111193223B (en) | 2025-03-28 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112053805A (en) * | 2020-09-07 | 2020-12-08 | 安徽尚纬电缆有限公司 | Thin-wall cable cutting device for new energy automobile |
| CN112332287A (en) * | 2020-09-29 | 2021-02-05 | 王平堂 | A cable erection device for easy adjustment of height and angle |
| CN112366607A (en) * | 2020-11-30 | 2021-02-12 | 大连中远海运川崎船舶工程有限公司 | Thick cable laying device based on cabin |
| CN112478908A (en) * | 2020-12-31 | 2021-03-12 | 扬州国电通用电力机具制造有限公司 | Large-tonnage cable drum unfolding traction platform and unfolding traction method thereof |
| CN113104657A (en) * | 2021-05-18 | 2021-07-13 | 广东电网有限责任公司 | Cable conveying equipment and cable conveying method |
| CN113602906A (en) * | 2021-07-28 | 2021-11-05 | 国网山东省电力公司建设公司 | A wire abrasionproof decreases device for transmission line non-tension unwrapping wire |
| CN114649780A (en) * | 2022-05-23 | 2022-06-21 | 山东五洲电力工程有限公司 | Electric traction device with positioning function |
| CN115173320A (en) * | 2022-09-09 | 2022-10-11 | 江苏永鼎股份有限公司 | Draw gear for cable laying |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112053805A (en) * | 2020-09-07 | 2020-12-08 | 安徽尚纬电缆有限公司 | Thin-wall cable cutting device for new energy automobile |
| CN112332287A (en) * | 2020-09-29 | 2021-02-05 | 王平堂 | A cable erection device for easy adjustment of height and angle |
| CN112366607A (en) * | 2020-11-30 | 2021-02-12 | 大连中远海运川崎船舶工程有限公司 | Thick cable laying device based on cabin |
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